Quenched and tempered steels
Quenched and tempered steels are heat-treated steels designed to combine high strength with useful toughness and ductility. They are used for heavily loaded components such as shafts, gears, fasteners and structural machine parts where resistance to mechanical stress is required.
| Grade | Material no. | C | Si | P | S | Mn | Cr |
|---|---|---|---|---|---|---|---|
| SQV1A | — | max 0.25 | 0.15 - 0.4 | max 0.02 | max 0.02 | 1.15 - 1.5 | max 0.3 |
| SQV3A | — | max 0.25 | 0.15 - 0.4 | max 0.02 | max 0.02 | 1.15 - 1.5 | max 0.3 |
| SFVQ2A | — | max 0.27 | max 0.4 | max 0.03 | max 0.03 | 0.5 - 1 | 0.25 - 0.45 |
| SQV2B | — | max 0.25 | 0.15 - 0.4 | max 0.02 | max 0.02 | 1.15 - 1.5 | max 0.3 |
| SFVQ1B | — | max 0.25 | max 0.4 | max 0.03 | max 0.03 | 1.2 - 1.5 | max 0.25 |
| SQV2A | — | max 0.25 | 0.15 - 0.4 | max 0.02 | max 0.02 | 1.15 - 1.5 | max 0.3 |
| SFVQ1A | — | max 0.25 | max 0.4 | max 0.03 | max 0.03 | 1.2 - 1.5 | max 0.25 |
| SFVQ3 | — | max 0.23 | max 0.4 | max 0.02 | max 0.02 | 0.2 - 0.4 | 1.5 - 2 |
| SQV1B | — | max 0.25 | 0.15 - 0.4 | max 0.02 | max 0.02 | 1.15 - 1.5 | max 0.3 |
| SQV3B | — | max 0.25 | 0.15 - 0.4 | max 0.02 | max 0.02 | 1.15 - 1.5 | max 0.3 |
| SFVQ2B | — | max 0.27 | max 0.4 | max 0.03 | max 0.03 | 0.5 - 1 | 0.25 - 0.45 |
| 1.0402 | 1.0402 | 0,17-0,24 | ≤0,40 | 0,045 | 0,045 | 0,40-0,70 | ≤0,40 |
| C25 | 1.0406 | 0,22-0,29 | ≤0,40 | 0,045 | 0,045 | 0,40-0,70 | ≤0,40 |
| E255 | 1.0408 | ≤0,21 | ≤0,35 | 0,025 | 0,025 | 0,40-1,10 | — |
| C20D | 1.0414 | 0,18-0,23 | ≤0,30 | 0,035 | 0,035 | 0,30-0,60 | ≤0,20 |
| C26D | 1.0415 | 0,24-0,29 | 0,10-0,30 | 0,03 | 0,03 | 0,50-0,80 | ≤0,20 |
| 1.0501 | 1.0501 | 0,32-0,39 | ≤0,40 | 0,045 | 0,045 | 0,50-0,80 | ≤0,40 |
| C35GPb | 1.0502 | 0,32-0,39 | ≤0,40 | 0,045 | 0,045 | 0,50-0,80 | — |
| 1.0503 | 1.0503 | 0,42-0,50 | ≤0,40 | 0,045 | 0,045 | 0,50-0,80 | ≤0,40 |
| 1.0511 | 1.0511 | 0,37-0,44 | ≤0,40 | 0,045 | 0,045 | 0,50-0,80 | ≤0,40 |
| 1.0528 | 1.0528 | 0,27-0,34 | ≤0,40 | 0,045 | 0,045 | 0,50-0,80 | ≤0,40 |
| 1.0535 | 1.0535 | 0,52-0,60 | ≤0,40 | 0,045 | 0,045 | 0,60-0,90 | ≤0,40 |
| C50 | 1.0540 | 0,47-0,55 | ≤0,40 | 0,045 | 0,045 | 0,60-0,90 | ≤0,40 |
| C42D | 1.0541 | 0,40-045 | 0,10-0,30 | 0,03 | 0,03 | 0,50-0,80 | ≤0,20 |
| 1.0601 | 1.0601 | 0,57-0,65 | ≤0,40 | 0,045 | 0,045 | 0,60-0,90 | ≤0,40 |
| C58D | 1.0609 | 0,55-0,60 | 0,10-0,30 | 0,03 | 0,03 | 0,50-0,80 | ≤0,15 |
| C60D | 1.0610 | 0,58-0,63 | 0,10-0,30 | 0,03 | 0,03 | 0,50-0,80 | ≤0,15 |
| 38Mn6 | 1.1127 | 0,34-0,42 | 0,15-0,35 | 0,035 | 0,035 | 1,40-1,65 | ≤0,40 |
| 20Mn5 | 1.1133 | 0,17-0,23 | ≤0,40 | 0,035 | 0,035 | 1,00-1,50 | ≤0,40 |
| C20D2 | 1.1137 | 0,18-0,23 | ≤0,30 | 0,02 | 0,025 | 0,30-0,50 | ≤0,10 |
| C26D2 | 1.1139 | 0,24-0,29 | 0,10-0,30 | 0,02 | 0,025 | 0,50-0,70 | ≤0,10 |
| C32D2 | 1.1143 | 0,30-0,34 | 0,10-0,30 | 0,02 | 0,025 | 0,50-0,70 | ≤0,10 |
| C22R | 1.1149 | 0,17-0,24 | ≤0,40 | 0,035 | 0,020-0,040 | 0,40-0,70 | ≤0,40 |
| C22E | 1.1151 | 0,17-0,24 | ≤0,40 | 0,035 | 0,035 | 0,40-0,70 | ≤0,40 |
| C40D2 | 1.1153 | 0,38-0,42 | 0,10-0,30 | 0,02 | 0,025 | 0,50-0,70 | ≤0,10 |
| C42D2 | 1.1154 | 0,40-0,44 | 0,10-0,30 | 0,02 | 0,025 | 0,50-0,70 | ≤0,10 |
| 1.1157 | 1.1157 | 0,36-0,44 | 0,25-0,50 | 0,035 | 0,035 | 0,80-1,10 | — |
| 1.1158 | 1.1158 | 0,22-0,29 | ≤0,40 | 0,035 | 0,035 | 0,40-0,70 | ≤0,40 |
| 26Mn5 | 1.1161 | 0,20-0,30 | ≤0,40 | 0,03 | 0,035 | 1,20-1,50 | — |
| C46D2 | 1.1162 | 0,44-0,48 | 0,10-0,30 | 0,02 | 0,025 | 0,50-0,70 | ≤0,10 |
| C25R | 1.1163 | 0,22-0,29 | ≤0,40 | 0,035 | 0,020-0,040 | 0,40-0,70 | ≤0,40 |
| G28Mn6 | 1.1165 | 0,25-0,32 | ≤0,60 | 0,035 | 0,03 | 1,20-1,80 | — |
| 1.1167 | 1.1167 | 0,32-0,40 | ≤0,40 | 0,035 | 0,035 | 1,20-1,50 | — |
| 1.1170 | 1.1170 | 0,25-0,32 | ≤0,40 | 0,035 | 0,035 | 1,30-1,65 | ≤0,40 |
| 30Mn5 | 1.1173 | 0,27-0,34 | 0,15-0,40 | 0,035 | 0,035 | 1,20-1,50 | ≤0,30 |
| C30E | 1.1178 | 0,27-0,34 | ≤0,40 | 0,035 | 0,035 | 0,50-0,80 | ≤0,40 |
| C30R | 1.1179 | 0,27-0,34 | ≤0,40 | 0,035 | 0,020-0,040 | 0,50-0,80 | ≤0,40 |
| C35 | 1.1180 | 0,32-0,39 | ≤0,40 | 0,03 | 0,020-0,040 | 0,50-0,80 | ≤0,40 |
| C35E | 1.1181 | 0,32-0,39 | ≤0,40 | 0,03 | 0,035 | 0,50-0,80 | ≤0,40 |
| C40E | 1.1186 | 0,37-0,44 | ≤0,40 | 0,03 | 0,035 | 0,50-0,80 | ≤0,40 |
Standards covering this category
31- DIN / EN120 grades
- UNS84 grades
- AISI / SAE84 grades
- AFNOR70 grades
- BS68 grades
- JIS68 grades
- GOST59 grades
- PN51 grades
- GB49 grades
- ISO48 grades
- ČSN48 grades
- UNI44 grades
- UNE43 grades
- MSZ34 grades
- SRPS33 grades
- KS29 grades
- SS28 grades
- STAS28 grades
- STN27 grades
- BDS24 grades
- ASTM20 grades
- AS / NZS20 grades
- COPANT19 grades
- NBN16 grades
- SAE AMS12 grades
- ÖNORM9 grades
- MKE8 grades
- HRN7 grades
- ABNT NBR7 grades
- SFS6 grades
- SNV5 grades
Property ranges
21| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| ReH | N/mm² | 260 | 900 | 6 |
| Rm | N/mm² | 340 | 1750 | 58 |
| A80 | % | 15 | 22 | 9 |
| Re | N/mm² | 255 | 1420 | 36 |
| A | % | 5 | 25 | 61 |
| A5 | % | 6 | 26 | 25 |
| Z | % | 25 | 60 | 28 |
| KCU | kJ/m² | 240 | 980 | 18 |
| HB | — | 138 | 302 | 49 |
| HV | — | 155 | 530 | 10 |
| rho | g/cm³ | 7.43 | 7.859 | 122 |
| E | GPa | 123 | 218 | 20 |
| alpha | 10^-6/K | 10.8 | 15.8 | 17 |
| lambda | W/(m·K) | 24.8 | 76 | 17 |
| cp | J/(kg·K) | 461 | 764 | 16 |
| rho_el | nΩ·m | 120 | 1300 | 12 |
| Ac1 | °C | 700 | 757 | 21 |
| Ac3 | °C | 750 | 845 | 21 |
| Ar3 | °C | 490 | 825 | 18 |
| Ar1 | °C | 370 | 695 | 19 |
| G | GPa | 71 | 81 | 1 |
Derived from 122 grades in this category with a recorded value.
Composition range
17| Property | Unit | Min | Max | Grades |
|---|---|---|---|---|
| B | % | 0.0008 | 0.005 | 12 |
| C | % | 0.11 | 45 | 133 |
| N | % | 0.007 | 0.012 | 8 |
| O | % | 0.002 | 0.002 | 2 |
| Al | % | 0.005 | 0.05 | 20 |
| Si | % | 0.1 | 1.9 | 125 |
| P | % | 0.01 | 0.1 | 133 |
| S | % | 0.007 | 0.05 | 133 |
| Ti | % | 0.03 | 0.03 | 6 |
| V | % | 0.03 | 0.35 | 25 |
| Cr | % | 0.1 | 3.3 | 105 |
| Mn | % | 0.15 | 13 | 133 |
| Ni | % | 0.1 | 4.75 | 79 |
| Cu | % | 0.15 | 0.4 | 24 |
| Nb | % | 0.02 | 0.02 | 6 |
| Mo | % | 0.03 | 1 | 83 |
| Pb | % | 0.15 | 0.3 | 1 |
Derived from 133 grades in this category with a recorded value.
Heat treatment
8| Operation | MinTemperature (°C) | MaxTemperature (°C) | Grades |
|---|---|---|---|
| tempering | 500 | 680 | 18 |
| quenching | 820 | 880 | 15 |
| annealing | — | — | 10 |
| normalizing | 880 | 940 | 9 |
| spheroidize_annealing | — | — | 3 |
| quench_and_temper | — | — | 3 |
| soft_annealing | — | — | 2 |
| carburizing | — | — | 1 |